as I see it, faith is not a mean to attain knowledge, rather a GOAL.
GOD is goal for humankind. to be able to do everything IMAGINABLE.
now THAT requires faith. being in a monastery all day looking at nuns and not be able to touch them also requires faith. but one would not do that if he had not a GOAL to put faith in. "If I'm good i'll go to paradise" is actually a little trick of our minds, the right sentence would be "if I'm good i'll help humankind to achieve this ultimate goal, although i'll be gone by then and i'll "waste" my life". but who would do that, while still grapped within the primal instincts? just some "visionary", dedicated individuals, who have FAITH.
so we need to be tricked a little bit. like isaac asimov's robots and their rules of preservation, which humans also have, although more elaborate and expansive. that's called SUB-CONSCIOUSNESS. that's where we draw our faith from.
once you have *strong faith* in being able to do something, albeit impossible, you will strive to attain it. maybe piece by piece. that's where SCIENCE and HARD WORK jump into help a little bit.
so god is merely a projection of *final* desires of our greater and individual consciousnesses.
it is a bit diversified, as the nations and races and their environments are. so for muslim arabs who live in desert, paradise is merely a lush garden with an endless stream of water. etc.
and the heaven-hell thingy is actually a full spectre of possible human/god behaviours, copied directly from our minds.
God is treated with exaggerated respect and humility, like everything that seems impossible at this point.
thus the anwser to your question is; faith is needed for the sole purpose of being able to see and strive to the GOAL, science and work are TOOLS to achieve it.
Amen. (ok was that over-confident
